CN212552620U - Intelligent bolt tightening mechanism - Google Patents
Intelligent bolt tightening mechanism Download PDFInfo
- Publication number
- CN212552620U CN212552620U CN202021038879.6U CN202021038879U CN212552620U CN 212552620 U CN212552620 U CN 212552620U CN 202021038879 U CN202021038879 U CN 202021038879U CN 212552620 U CN212552620 U CN 212552620U
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- servo
- elastic element
- transmission shaft
- servo motor
- guide rail
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- 230000007246 mechanism Effects 0.000 title claims abstract description 73
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses an intelligent bolt tightening mechanism, which comprises a support arm, a servo sliding mechanism and a servo rotating mechanism; the side surface of the supporting arm is connected with a servo sliding mechanism, and a servo rotating mechanism is connected with the servo sliding mechanism; the servo sliding mechanism comprises a sliding mechanism, a first servo motor, a support frame, a support block, an installation plate and a first transmission shaft, wherein the upper end surface of the support frame is connected with the first servo motor, the lower end surface of the support frame is fixedly connected with the support block, and the installation plate is fixed on the side surface of the support block; the mounting plate is fixedly connected with the servo rotating mechanism; the servo rotating mechanism comprises a second servo motor, a tightening head, an elastic element, a pressure sensor, a torque sensor and a second transmission shaft; one end of the elastic element is connected with the second transmission shaft, the other end of the elastic element is provided with a tightening head, the torque sensor is fixedly sleeved on the side face of the elastic element, and the bottom end of the elastic element is provided with a pressure sensor. The utility model discloses simple structure, with low costs, degree of automation is high, can the accurate control bolt moment of torsion.
Description
Technical Field
The utility model relates to an equipment fixing field, concretely relates to mechanism is screwed up to bolt intelligence.
Background
Recently, with the rise of intellectualization, it is difficult for the conventional industrial mechanism devices to work to meet the requirements of higher and higher intellectualization, informatization and refinement. As for the problem of bolt tightening, some large-scale enterprises have widely adopted highly intelligent and highly automated intelligent tightening mechanisms, the requirement of bolt torque on precision is higher and higher in current industrial assembly, and for different assembly parts, the torque of the assembly parts needs to be accurately controlled to complete installation; rather than merely satisfying the tightening in the conventional concept; the large intelligent tightening mechanism in the prior art is high in cost, expensive in maintenance cost, high in operation difficulty and incapable of being widely popularized, and the small intelligent tightening mechanism is insufficient in torque control precision and has potential safety hazards in manual operation.
SUMMERY OF THE UTILITY MODEL
The technical purpose is as follows: to among the prior art, bolt intelligence is screwed up mechanism with high costs, control accuracy is not enough and there is not enough of potential safety hazard, the utility model discloses a simple structure, it is convenient, the security is high to maintain, can accurate control bolt moment of torsion and be provided with the intelligent mechanism of screwing up of bolt of emergency stop device.
The technical scheme is as follows: in order to achieve the technical purpose, the utility model adopts the following technical scheme:
an intelligent bolt tightening mechanism comprises a supporting arm, a servo sliding mechanism and a servo rotating mechanism; the side surface of the supporting arm is fixedly connected with the servo sliding mechanism, and the servo rotating mechanism is arranged on the servo sliding mechanism; the servo sliding mechanism comprises a sliding mechanism, a first servo motor, a supporting frame, a mounting plate, a supporting table and a first transmission shaft; the first servo motor is fixed on the support frame, and the first transmission shaft is connected with the sliding mechanism; the supporting table is fixedly connected with the lower end face of the supporting frame, the side face of the supporting table is fixedly connected with the mounting plate, and the servo rotating mechanism is fixed on the side face of the mounting plate; the servo rotating mechanism comprises a second servo motor, a tightening head, a pressure sensor, a torque sensor, an elastic element and a second transmission shaft, one end of the elastic element is connected with the second transmission shaft, the other end of the elastic element is connected with the tightening head, the torque sensor is fixed on the elastic element, and the pressure sensor is arranged at the bottom end of the elastic element.
Preferably, the sliding mechanism comprises a screw rod, a coupler, a guide rail seat and a guide rail; the guide rail seat is connected with the side face of the supporting arm, the guide rail is fixed on the side end face of the guide rail seat and vertically faces downwards, the top of the screw rod penetrates through the supporting table and is connected with the first transmission shaft, threads are arranged inside the guide rail and are connected with the screw rod in a matched mode, the screw rod transmission mechanism is used for transmission, transmission is accurate, controllability is high, feeding amount can be strictly controlled, bolt tightening accuracy is guaranteed, and equipment is not damaged.
Preferably, the top of the casing of the second servo motor is provided with a cooling fin, and the side surface of the casing is provided with an emergency stop device; the radiating fins prevent the machine from overheating due to continuous operation; and the emergency stop device is used for carrying out emergency operation when the second servo motor is out of control, so that the safety is ensured.
Preferably, the screw rod is connected with the first transmission shaft through a coupler.
Preferably, the side of the lower end of the mounting plate is provided with a baffle plate, and the bottom of the mounting plate is provided with a support plate.
Preferably, the support plate is provided with a central hole through which the second transmission shaft is connected to the elastic member.
Preferably, the supporting arm and the rail seat mounting surface are provided with reinforcing plates.
Preferably, the bottom of the supporting arm is fixed by using a bolt, so that the mechanism is convenient to disassemble and assemble, the side surface of the supporting arm is welded with the guide rail seat, and the joint is provided with a reinforcing plate to enhance the structural strength.
The utility model provides a when bolt intelligence is screwed up the mechanism and is used, arrange the bolt of waiting to screw up of equipment under the head of screwing up, start first servo motor, through lead screw transmission, servo transmission wholly downstream drives servo slewing mechanism and moves down together, start second servo motor, the second transmission shaft drives the head of screwing up and slowly rotates, when the head of screwing up and the bolt of waiting to screw up contact, torque sensor detects the moment of torsion, transmission signal to second servo motor, the second servo motor rotational speed increases, screw up with higher speed; the pressure sensor at the end of the elastic element enters the end of the bolt to be screwed together with the screwing head, the pressure sensor is contacted with the bolt to be screwed along with the continuous transmission of the first servo motor, a pressure signal is transmitted to the first servo motor, the rotating speed of the first servo motor is reduced, so that the feeding amount in the vertical direction is controlled, and when the torque value is detected to be close to a set value, the rotating speed of the second servo motor is controlled to be reduced until the torque value is reached, and the rotating speed is reduced to zero. And when the pressure value monitored by the pressure sensor reaches a set value, stopping the first servo motor to finish the screwing operation.
Has the advantages that: the utility model has the advantages that the pressure sensor and the torque sensor are arranged on the tightening mechanism, the first servo motor is controlled by the pressure sensor, the second servo motor is controlled by the torque sensor, the signal transmission is rapid, and the torque control is accurate; meanwhile, the elastic element is used, so that the impact force and the torque on the second servo motor are relieved, and the service life is prolonged; the emergency stop device is arranged, and the operation safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a front view of the present invention;
FIG. 2 is a partially enlarged view of the connection between the screw rod and the first servo motor;
FIG. 3 is a partial side view of the servo rotating mechanism of the present invention;
FIG. 4 is a partial enlarged view of the tightening head of the present invention;
fig. 5 is a bottom view of the tightening head of the present invention;
wherein, 1-supporting arm, 2-servo sliding mechanism, 3-servo rotating mechanism, 4-reinforcing plate;
201-guide rail seat, 202-guide rail, 203-first servo motor, 204-support frame, 205-mounting plate, 206-coupling, 207-screw rod, 208-support table, 209-first transmission shaft, 210-baffle, 211-support plate;
301-second servomotor, 302-tightening head, 303-pressure sensor, 304-torque sensor, 305-elastic element, 306-second drive shaft, 307-cooling fin, 308-emergency stop device.
Detailed Description
The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, which are not intended to limit the scope of the invention as described herein.
As shown in fig. 1, the intelligent bolt tightening mechanism provided by the present invention comprises a support arm 1, a servo sliding mechanism 2, and a servo rotating mechanism 3; the servo sliding mechanism 2 comprises a sliding mechanism, a first servo motor 203, a support frame 204, a mounting plate 205, a support table 208 and a first transmission shaft 209, wherein the sliding mechanism comprises a screw rod 207, a coupler 206, a guide rail seat 201 and a guide rail 202; the first servo motor 203 is fixed on the support frame 204, and the support table 206 is fixed on the lower end surface of the support frame 204.
As shown in fig. 2, the screw 207 passes through the support table 206 and the support frame 204, and is connected with the first transmission shaft 209 through the coupling 206; the guide rail seat 201 is fixedly connected with the side surface of the support arm 1, the guide rail 202 is vertically arranged on the side surface of the guide rail seat by arranging the reinforcing plate 6 on the connecting surface, and a threaded hole is formed for being matched and connected with the screw rod 207.
As shown in fig. 3, a baffle 210 is arranged on the side of the bottom of the mounting plate 205, the baffle 210 is vertically arranged along two sides of the mounting plate 205, a support plate 211 is arranged on the bottom of the mounting plate 205, the support plate 211 is vertical to the side of the mounting plate 205, and a central hole is arranged for supporting the servo rotating mechanism; the servo rotating mechanism 3 is installed on the side surface of the mounting plate 205 above the support plate 211.
The servo rotating mechanism 3 comprises a second servo motor 301, a tightening head 302, a pressure sensor 303, a torque sensor 304, an elastic element 305 and a second transmission shaft 306; the upper part of the second servo motor 301 is provided with a cooling fin 307 to prevent the equipment from being damaged due to overheating, and the side surface of the second servo motor is provided with an emergency stop device 308 to emergently stop the equipment under the condition of out-of-control of the equipment, so that the operation safety is ensured.
As shown in fig. 4 and 5, the second transmission shaft 306 is connected to the elastic member 305 through the central hole of the support plate 211 for buffering the impact force applied to the second transmission shaft; the torque sensor 304 is fixedly sleeved on the elastic element 305, so that the torque can be monitored in real time and signals can be transmitted conveniently; the other end of the elastic element 305 is connected with the tightening head 302, a pressure sensor 303 is arranged at the bottom, and the pressure sensor 303 is used for transmitting signals to the first servo motor and controlling the feeding amount.
The utility model provides a mechanism is screwed up to bolt intelligence, when using, will treat to screw up the bolt and arrange in under the head 302 of screwing up, start first servo motor 203, control servo slide mechanism 2 descends, drive servo slewing mechanism 3 and descend, the head 302 of screwing up shortens with the terminal surface distance of treating to screw up the bolt, start second servo motor 301, drive the head 302 of screwing up and rotate at a slow speed, after the head 302 of screwing up and treating to screw up the bolt terminal surface contact, torque sensor 304 monitors the moment of torsion, the transmission signal, control second servo motor 301 rotational speed increases gradually, screw up with higher speed.
As shown in fig. 5, the bottom of the elastic element 305 is provided with a pressure sensor 303, when the rotation speed of the first servo motor 203 is too fast, the servo sliding mechanism 2 drives the servo rotating mechanism 3 to descend by a distance greater than the descending distance of the bolt to be screwed, the pressure sensor 303 contacts with the end face of the bolt to be screwed, receives pressure and transmits a signal to control the rotation speed of the first servo motor 203 to descend, further controls the descending distance of the servo rotating mechanism 3, and reduces the axial pressure of the second transmission shaft 306.
When the torque value monitored by the torque sensor 304 is close to the designed torque value, a signal is transmitted to control the rotating speed of the second servo motor 301 to decrease, until the torque value is the same as the designed torque value, the second servo motor 301 stops rotating, the first servo motor 203 still operates at the moment, the pressure sensor 303 is in contact with the end face of the bolt to be screwed, the pressure value is increased, and when the pressure value reaches the set value, the first servo motor 203 stops rotating to finish the screwing operation.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a mechanism is screwed up to bolt intelligence which characterized in that: comprises a supporting arm (1), a servo sliding mechanism (2) and a servo rotating mechanism (3); the side surface of the supporting arm (1) is fixedly connected with the servo sliding mechanism (2), and the servo rotating mechanism (3) is arranged on the servo sliding mechanism (2);
the servo sliding mechanism (2) comprises a sliding mechanism, a first servo motor (203), a supporting frame (204), a mounting plate (205), a supporting table (208) and a first transmission shaft (209); the first servo motor (203) is fixed on the support frame (204), and the first transmission shaft (209) is connected with the sliding mechanism; the supporting table (208) is fixedly connected with the lower end face of the supporting frame (204), the side face of the supporting table is fixedly connected with the mounting plate (205), and the servo rotating mechanism (3) is fixed on the side face of the mounting plate (205);
the servo rotating mechanism (3) comprises a second servo motor (301), a tightening head (302), a pressure sensor (303), a torque sensor (304), an elastic element (305) and a second transmission shaft (306), one end of the elastic element (305) is connected with the second transmission shaft (306), the other end of the elastic element is connected with the tightening head (302), the torque sensor (304) is fixed on the elastic element (305), and the pressure sensor (303) is arranged at the bottom end of the elastic element (305).
2. The intelligent bolt tightening mechanism according to claim 1, characterized in that: the sliding mechanism comprises a screw rod (207), a coupler (206), a guide rail seat (201) and a guide rail (202); the guide rail seat (201) is connected with the side face of the support arm (1), the guide rail (202) is fixed on the side end face of the guide rail seat (201) and vertically faces downwards, the top of the screw rod (207) penetrates through the support table (208) and is connected with the first transmission shaft (209), and threads are arranged inside the guide rail (202) and are matched and connected with the screw rod (207).
3. The intelligent bolt tightening mechanism according to claim 2, characterized in that: the top of the shell of the second servo motor (301) is provided with a cooling fin (307), and the side surface of the shell is provided with an emergency stop device (308).
4. The intelligent bolt tightening mechanism according to claim 2, characterized in that: the screw rod (207) is connected with the first transmission shaft (209) through a coupling (206).
5. The intelligent bolt tightening mechanism according to claim 2, characterized in that: the side of the lower end of the mounting plate (205) is provided with a baffle (210), and the bottom of the mounting plate (205) is provided with a support plate (211).
6. The intelligent bolt tightening mechanism according to claim 5, characterized in that: the support plate (211) is provided with a central hole through which a second transmission shaft (306) is connected to the elastic element (305).
7. The intelligent bolt tightening mechanism according to claim 2, characterized in that: and reinforcing plates (4) are arranged on the mounting surfaces of the support arm (1) and the guide rail seat (201).
8. The intelligent bolt tightening mechanism according to claim 1, characterized in that: the bottom end of the supporting arm (1) is fixed through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021038879.6U CN212552620U (en) | 2020-06-09 | 2020-06-09 | Intelligent bolt tightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021038879.6U CN212552620U (en) | 2020-06-09 | 2020-06-09 | Intelligent bolt tightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212552620U true CN212552620U (en) | 2021-02-19 |
Family
ID=74630029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021038879.6U Active CN212552620U (en) | 2020-06-09 | 2020-06-09 | Intelligent bolt tightening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212552620U (en) |
-
2020
- 2020-06-09 CN CN202021038879.6U patent/CN212552620U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing University of Engineering Science Park Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2023980036185 Denomination of utility model: An intelligent bolt tightening mechanism Granted publication date: 20210219 License type: Common License Record date: 20230606 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Nanjing University of Engineering Science Park Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2023980036185 Date of cancellation: 20240301 |
|
| EC01 | Cancellation of recordation of patent licensing contract |